The Bayern Munich defender repeated his desire for video assistants after his side's controversial exit from the Champions League
Mats Hummels accused referee Viktor Kassai of having "an extremely bad game" as 10-man Bayern Munich lost 6-3 on aggregate to Real Madrid in the Champions League quarter-finals, with the defender calling for video technology to be introduced to help match officials.
The tie was finely poised at 3-3 on aggregate when Arturo Vidal was harshly sent off after receiving a second yellow card when he looked to have won the ball in a tackle on Marco Asensio and two of the three goals scored by Cristiano Ronaldo appeared to be from offside positions.